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Silver-copper alloy wire for patch fuse wire and manufacturing method of silver-copper alloy wire

A technology of silver-copper alloy and manufacturing method, which is applied in the field of alloy wire manufacturing, can solve the problems of high cost of silver-copper alloy wire alloy, poor performance stability of finished products, etc., and achieve small change of resistance value with temperature, stable resistance value and high tensile strength high effect

Active Publication Date: 2019-08-16
JIAOZUO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a silver-copper alloy wire for a chip fuse fuse and its manufacturing method to at least solve the problems of high cost of the current silver-copper alloy wire alloy and poor performance stability of the finished product.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Prepare a silver-copper alloy wire with a diameter of 0.06 mm. The specific preparation steps are as follows:

[0061] S1, the preparation of silver-copper alloy rod, this step specifically comprises the following steps:

[0062] S11, the preparation of the silver-copper alloy blank, this step specifically includes the following steps:

[0063] S111, weigh copper, silver, indium, cerium, and cobalt according to the following mass percentages: silver 10%, indium 0.1%, cerium 0.1%, cobalt 0.1%, palladium 0.1%, and the balance is copper.

[0064] S112, wrap the indium weighed in step S111 with copper foil, mix it with cerium and cobalt and place it in the charging box of the vacuum intermediate frequency melting furnace, and add the remaining copper and silver layered into the graphite crucible of the vacuum intermediate frequency melting furnace.

[0065] S113, vacuumize the hearth of the vacuum intermediate frequency smelting furnace in step S112, and wait until the vac...

Embodiment 2

[0076] Prepare a silver-copper alloy wire with a diameter of 0.08 mm. The specific preparation steps are as follows:

[0077] S1, the preparation of silver-copper alloy rod, this step specifically comprises the following steps:

[0078] S11, the preparation of the silver-copper alloy blank, this step specifically includes the following steps:

[0079] S111, weigh copper, silver, indium, cerium, and cobalt according to the following mass percentages: silver 20%, indium 0.2%, cerium 0.2%, cobalt 0.15%, palladium 0.22%, and the balance is copper.

[0080] S112, wrap the indium weighed in step S111 with copper foil, mix it with cerium and cobalt and place it in the charging box of the vacuum intermediate frequency melting furnace, and add the remaining copper and silver layered into the graphite crucible of the vacuum intermediate frequency melting furnace.

[0081] S113, vacuumize the hearth of the vacuum intermediate frequency smelting furnace in step S112, and wait until the v...

Embodiment 3

[0092] Prepare a silver-copper alloy wire with a diameter of 0.22 mm. The specific preparation steps are as follows:

[0093] S1, the preparation of silver-copper alloy rod, this step specifically comprises the following steps:

[0094] S11, the preparation of the silver-copper alloy blank, this step specifically includes the following steps:

[0095] S111, weigh copper, silver, indium, cerium, and cobalt according to the following mass percentages: silver 25%, indium 0.25%, cerium 0.22%, cobalt 0.3%, palladium 0.32%, and the balance is copper.

[0096] S112, wrap the indium weighed in step S111 with copper foil, mix it with cerium and cobalt and place it in the charging box of the vacuum intermediate frequency melting furnace, and add the remaining copper and silver layered into the graphite crucible of the vacuum intermediate frequency melting furnace.

[0097] S113, evacuate the hearth of the vacuum intermediate frequency smelting furnace in step S112, and wait until the v...

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Abstract

The invention belongs to the field of alloy wire manufacturing, and particularly discloses a silver-copper alloy wire for a patch fuse wire and a manufacturing method of the silver-copper alloy wire.The silver-copper alloy wire comprises elements of silver, indium, cerium, cobalt, palladium and copper; and the alloy wire with the elements has the advantages of being low in cost, stable in resistance value, high in tensile strength, small in change of resistance value along the temperature and the like. The manufacturing method comprises the following steps that firstly, the copper, the silver, the indium, the cerium and the cobalt are prepared according to the ratio, and smelting and processing are carried out to obtain a silver-copper alloy rod; then large-deformation processing is carried out on the prepared silver-copper alloy rod so as to prepare a silver-copper alloy crude wire; and finally, wire drawing is carried out on the prepared silver-copper alloy crude wire to prepare a finished product of the silver-copper alloy wire. According to the silver-copper alloy wire and the manufacturing method, the stability of the alloy component is ensured, and the defects of segregation, looseness, air holes and the like generated in the traditional pouring mode are avoided. The large-deformation processing enables grains in the alloy to be elongated, crushed and refined, so that the alloy components are uniformly dispersed, the resistance value of the patch fuse wire silver-copper alloy is more stable, and meanwhile, the strength is further improved.

Description

technical field [0001] The invention belongs to the field of alloy wire manufacturing, and in particular relates to a silver-copper alloy wire for a patch fuse fuse and a manufacturing method thereof. Background technique [0002] Products in the electronics industry are getting smaller and smaller, and the degree of integration is getting higher and higher. Fuse products are also designed in the direction of small size and surface mount technology. For chip fuse products, in order to avoid resistance drift and open circuit after being subjected to the soldering heat resistance test, and to make the resistance difference between the front and back of the product small, the terminal electrode material of the chip fuse is mainly copper or copper alloy, and the fuse is Single or multi-combination gold wire combination is used as the fuse. Due to the combination of multi-combination gold fuses in parallel or series-parallel combination, the chip fuse fuse must have good resistan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C5/08C22C30/02C22F1/14C22F1/08C22F1/02C22C1/02B22D11/04B22D11/113B22D11/115B21C37/04H01H85/06H01H69/02
CPCB21C37/04B22D11/001B22D11/004B22D11/04B22D11/113B22D11/115C22C1/02C22C5/08C22C9/00C22C30/02C22F1/02C22F1/08C22F1/14H01H69/02H01H85/06
Inventor 范俊玲原东林陈彦君曹军朱利霞樊丽梅
Owner JIAOZUO UNIV
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